Cleaning device for intaglio-plates.



H. A. W. WOOD.

CLEANING DEVICE FOR INTAGLIO PLATES. APPLICATION FILED EEB.25, 1907. RENEWED MAR. 7, 1912 L O k2g5 1 7 Patented Oct. 29, 1912.

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Unitarian sari tans Parana ora ion.

HENRY A. WISE WOOD, OF NEW YORK, N. Y., 'ASSIGNOR, BY MESNE AsslGNmENTs, E0

WOOD & NATHAN COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

CLEANING DEVICE FOR INTAGLIO-PLA'JQES.

aoaasir Specification of Letters Patent.

Patented Oct. 29,1912.

Application filed February 25, 1907, Serial No. 359.116. -1tenewed March 7, 1912. Serial No. 682,085.-

To all whom it may concern Be it known that I, HENRY A. WISE 001), a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and useful Cleaning Device for intaglio-Plates, of which the following is a specification.

In an application for patent filed February 8, 1907, Serial No. 356,317, I have set forth a method of preparing intaglio printing cylinders and other plates for making successive imprints without permitting the outside circumferences thereof to be reduced.

' One'form in which said invent-ion is illustrated comprises the employment of a cylindrical shell which is longitudinally slit.

When. thesli-t in this shell is made parallel with the axis thereof and with the edge of the cleaning blade, it is obvious that the latter will snap into the slit or gap in theshell once during each revolution.

The principal object of the present invention is to provide means for preventing the cleaning blade from snapping into the channel when a divided shell is used such as that above mentioned, or in the case of Hat or curved plates divided or separated from each other by similar gaps. These objects are accomplished with all types of plat-es and shells by the use of means for keeping the blade substantially at a position corresponding to the outer circumference or plane of the plate while it passes over the slit or gap. Several ways of accomplishing this result can be adopted within my invention;

Reference is to be had to the accompany ing drawings which illustrate several forms of the invention and in which,

Figure 1 is a perspective view of a cylindrical shell slit longitudinally, showing one form of the invention. Fig. 2-.is a transverse SGCtlQIIHJITN iGW 6f hQ same-showing the cleaning blade in position. Fig. 3 is a perspective view of a printing cylinder having curved plates thereon showing another way in which the invention can be carried out. Fig. 4 is a perspective view of a cylinder with plates thereon showing still another modification, and Fig. 5 is a perspective view showing flat plates and another way in which the invention can be carried out.

In all of the forms. of. the invention, a

cleaning device for the intaglio printing surfaces is provided'with means for keepof the shell and n ith the edge of the cleaning blade 0. The gap in the shell extends throughout the length thereof.

For the purpose of holding the blade insuch position that it will not snap into'the slit or gap and so that it will engage the oncoming surface of the plate in a proper manner, the shell is provided with stops or bridges (Z countersunk into the same and preferably secured by a pin 6 or the like to one of the sides of the shell. This piece may bemade of copper or any other desired material and is preferably reduced-in thickness in the same manner that the shell is reduced, when the shell is prepared for repeated use, so that it always serves to bridge the gap and hold the blade'in such and will be properly located to engage the oncoming surface of the shell in such a.

manner as efiectively to clean it.

In Fig. 3 the invention is shown asapplied to a cylinder f having curved plates a thereon. In this case, bridges or stopsd are mounted on the cylinder, but not in contact with the plates, in such position as to bridge the gaps d between them, so as to serve the same purpose as that above de scribed. In Fig. 4 this principle is carried out by providing the shaft h with an arm is having a cam roller Z thereon, the shaft of the printing cylinder f having cams b for operating the roller. In this arrangement, the. cleaning blade is held in engagement with the plates by the weight of the roller, or in any other desired way, except when passing the gap,.at which time it is held in proper position by the operation of one of the cams.

In Fig. 5 are shown fiat printing plates a which may be provided with any of the dif- Referringfirst to Figs. 1 and 2, it will be seen that the intaglio printing sheila is provided with a longitudinal slit or gap-b1 which in this case is parallel with the axis ferent forms of the invention. They are shown, however, asprovided with still another modification in which stops d extend throughoutthe length of the printing sur face so that the blade Willat all times be held by the stops.

In thevarious forms of, stops or bridges,

it is to be observed-that they may be made flat or cylindrical as the case may be or cleaning device in proper position consists of an element which is fixed with respect to the printing surface so thatwhen the inven tion is applied to a rotary press, it. rotates with the shell or plate cylinder and when applied to a flat bed press, it moves with the printing surface. i

While I have illustrated and described certain forms in which my invention may. conveniently be embodied, I am awarethat modificationsmay be made therein and that the several forms shown 'can be applied to other types of presses than those upon which they are indicated, without departing from the spirit of the invention as expressed in theclaims. Therefore, I do not Wish to be limited to the particular forms shown, but

What I do claim is (I l. The combination with a cleaning deyice for intaglio printing surfaces, of means located at opposite ends of; said printing surfaces engaging'the cleaning device when it comes to the edge ofthe printing surfaces for preventing the cleaning device from snapping off the edges of the printing surfaces, I

-2. The combination with an intaglio printing member, of 'a cleaning device, and means on said printing member for holding the cleaningdevice substantially at the height of the print-ing surface while passing a gap therein.

- 3. The combination with an intaglio rinting cylinder having a slit or gap, of a cleaning device, and means located in position to engage the operative edge of the cleaning device while passin the gap for holding the same substantial y at the height of the printing surface while passing a gap therein.

4. The combination with an intaglio printing plate, of a cleaning device,'and a stop for said device located adjacent to the plate and movable therewith for limiting the motion of the cleaning device in one direction, toward the plate. I 5. The combination'with a printing cylinder having intagliov printing surfaces thereon separated bya gap,a cleaning blade, and means' on said cylinder adjacent to said gap for holding the blade out of the gap when passing over it.-

6. The combination with a prlnting mem pber having intaglio printing surfaces there 'on, with gaps between said surfaces, of cleaning blade, and means on said printing member for holding the cleaning blade out of the gap when assingover it. i

In testimony 'w ereof I have hereunto set my hand, in the presence of two subscribing witnesses. I

H. a. wIsE wool);

Witnesses: s l

MARY E. MCCADDEN, V ANNIE B..WALTERS.' 

